| Mineral class | Sulphides : Chalcocite group |
| Chemical formula | Cu6As |
| Crystal system | Hexagonal |
| Habitus | Crystals minute, commonly as granular or massive aggregates. |
| Cleavage | Fracture subconchoidal. |
| Hardness | 4 |
| Density | 8.38 |
| Color | Steel gray to silvery white or yellowish when fresh. Exposed surfaces with a dull tarnish. Bright creamy white when polished. |
| Streak | |
| Luster | Bright metallic, opaque. |
| Description | |
| Occurance | In hydrothermal deposits. |
| Associates | Other copper arsenides, copper, silver, domeykite. |
| Notes | Named after the Algodones mine in Chile. |
| Localities | A rare mineral Sweden :
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| To sulphides index. |
Mineral group index. |
Main index. |
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